TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4666 SUBJECT: GRB 060204C: BOOTES-IR optical limits DATE: 06/02/05 00:30:01 GMT FROM: Martin Jelinek at Inst.Astrophys.Andalucia,Granada S. Guziy, S. Vitek, M. Jelinek, A.J. Castro-Tirado, A. de Ugarte Postigo, S.B. Pandey, J. Gorosabel, R. Cuniffe and S.C. Castillo (IAA Granada, Spain), P. Kubanek (ASU Ondrejov, Czech Rep. and ISDC Versoix, Switzerland), M.D. Sabau-Graziati (INTA Madrid, Spain) and R. Hudec (ASU Ondrejov, Czech Rep.), on behalf of larger colaboration report The 60cm robotic telescope BOOTES-IR located at Observatorio Sierra Nevada, Southern Spain, observed automatically the position of GRB060204C (Grupe et al. GCN 4663). The telescope slewed automatically within 3m5s after recieving the GCN alert and immediately started the observation. We do not see any optical transient in the GRB errorbox down to the foillowing 3-sigma limits: mean time after GRB exposure limit filter =================================================== 7m20s 70s 17.8 Rj 19m5s 270s 18.9 Rj =================================================== Note that BOOTES-IR is still in comissioning phase operating without the IR camera. This message may be cited.